Of the abstraction. The values for getRadius() or getCircumference() in the above mentioned instance might be saved straight, or they may be calculated, it isn't going to make a difference on the caller; the setters may or might not have Negative effects; it doesn't subject on the caller. See @michael-puckett-ii https://propertyingurugram.in/haryana-govt-nod-for-metro-extension-between-palam-vihar-and-dwarka-sector-21/